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| Year | Trade Value | Weight (kg) | Quantity |
| 2005 | $187 | 20 | 20 |
| 2006 | $6,027 | 14,784 | 14,784 |
| 2007 | $8,270 | 10,980 | 10,980 |
| 2008 | $15,458 | 45,641 | 45,641 |
| 2009 | $77,408 | 153,185 | 153,185 |
| 2010 | $5,397 | 15,532 | 15,532 |
| 2011 | $64,352 | 74,997 | 74,997 |
Note: Quantity represents Weight in kilograms
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